Yoga is not a form of exercise. Yoga is a practice. Each day we come to our mats to practice the things that we need to work on - both physically and mentally. We practice these things until they become a habit. Each day will be different. Some days will be harder than others. So remember to celebrate every change in your practice. No matter how small it may seem. Holding a pose one second longer. Feeling more comfortable with your breath. Staying in your own practice. Whatever it may be it's all part of the process which leads to a yoga lifestyle.